海拉尔盆地复杂断块油藏优势储层形成机理探讨

doi:10.3969/j.issn.1673-8926.2015.01.004

LITHOLOGIC RESERVOIRS ›› 2015, Vol. 27 ›› Issue (1): 26-31.doi: 10.3969/j.issn.1673-8926.2015.01.004

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Formation mechanism of favorable reservoir of complex fault block reservoir in Hailaer Basin

WANG Zhenglai¹， JIANG Hongfu¹， GUAN Linlin²， PAN Zhongliang¹， XU Yanlong¹

1. Hailaer Administration of Petroleum Exploration and Development ， PetroChina Daqing Oilfield Company Ltd. ，Daqing 163712 ， Heilongjiang ， China ； 2. Daqing Vocational College ， PetroChina Daqing Oilfield Company Ltd. ， Daqing 163055 ， Heilongjiang ， China

Online:2015-02-03 Published:2015-02-03

Abstract

Abstract:

In order to speed up the effective use of proved oil reserves in Hailaer Basin, under the guidance of influencing factors of complex fault block reservoir, combining with fine logging interpretation results of reservoir parameters, this paper analyzed the formation mechanism of favorable reservoir. The results show that sedimentary facies and sedimentary microfacies types control the original reservoir properties change of the first member of Nantun Formation in Hailaer Basin. Among three types of sedimentary facies, the reservoir properties of braided river delta are slightly better than that of fan delta and turbidite fan. The braided river delta underwater distributary channel, fan delta underwater distributary channel and turbidite channel are favorable sedimentary facies belts. Compaction and cementation are the main causes for reservoir tightness, which leads to reservoir microcosmic pore structure nowadays. Controlled by various factors, the reservoir properties are getting worse and worse with increasing burial depth, but there developed several reservoir property abnormal high value zones. This study points out the direction for the non producing reserves research, and provides a useful reference for other similar block potential prediction.

Key words: solvable organic matter, different occurrence states, geochemical characteristics, argillaceous source

WANG Zhenglai,JIANG Hongfu,GUAN Linlin,PAN Zhongliang,XU Yanlong. Formation mechanism of favorable reservoir of complex fault block reservoir in Hailaer Basin[J].LITHOLOGIC RESERVOIRS, 2015, 27(1): 26-31.

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